The Daily Mail added that prosecutors claimed Berlusconi had “ridiculed” police, and “seriously offended” nurses, by having showgirls at the parties wear police and nurses’ uniforms.

Attendees at the parties say Berlusconi boasted of having learned the phrase ‘bunga bunga’ – which is understood to refer to an after-dinner sex game – from currently under-fire Libyan leader Muammar Gaddafi.

The photographs were seized as part of ongoing investigations into claims that Berlusconi hired a series of prostitutes – including 17-year-old Moroccan bellydancer Karima El Marhouq, known as ‘Ruby Heartbreaker’ – for entertainment at his parties.

Berlusconi has denied the allegations, insisting that at 74, he is “too old for that much sex”.

Barbara Guerra, 32, is a Italian reality TV star and a former girlfriend of Manchester City's Mario Balotelli.